ProTerm RAY 9-24K - Technical Parameters; Electrical Specifications and Protection

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10
12. Technical parameters
Voltage............................................................................V.........................3 x 400 + N + PE, 50 Hz
Max. current (24kW)................................................... A........................3 x 36 A
Power input *............................................................. kW..................... 9, 12, 15, 18, 21, 24
Expansion tank.......................................................... l..........................10l
Min. operating boiler overpressure................................ kPa.................... 80
Max. operating boiler overpressure............................... kPa....................300
Electric protection.......................................................................................IP 40
Heating water conection.............................................................................G 3/4“
Filling/draining opening.............................................................................. G 1/2“
Dimensions:
height...............................................................................mm.................... 745
width............................................................................... mm.................... 410
depth.............................................................................. mm.................... 240
weight (without water)..................................................... kg...................... 34
Efficiency.........................................................................%........................99,5
Max. operating temperature of the heating water...........
°
C.......................85
Max. delivery of the circulation pump..............................kPa................... 50
Recommended operating overpressure of the boiler......kPa.................... 100 - 170
Recommended circuit breakers valves and cross-sectional area of power
supply cable
type of Protherm boiler K (kW) circuit breaker value (A) Cross-sectional area of Cu
power supply cable (mm
2
)
9 16 1,5
12 25 2,5
15 25 2,5
18 35 4
21 35 4
24 50 6